Patents by Inventor Jacob A. Otthofer, Jr.

Jacob A. Otthofer, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Variable width embossing roll
    Patent number: 4397072
    Abstract: The invention is directed to a method of expanding the width of an embossing roll which is composed of two or more embossing sleeves. Spacer washers are positioned between the sleeves to provide an embossing roll of the desired width. The outer edge of the spacer washers are then shaped to the pattern of the embossing sleeves so as to blend the pattern on the edge of one embossing sleeve to the pattern on an adjacent edge of another embossing sleeve.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: August 9, 1983
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jacob A. Otthofer, Jr.
  • Print screen stencil and its production
    Patent number: 4362808
    Abstract: A print screen stencil for printing with corrosive printing compositions is disclosed. The stencil comprises a screen fabric having open mesh areas in a predetermined pattern adapted to allow the passage of a printing composition to a substrate positioned beneath the fabric and filled or closed mesh areas adapted to prevent the passage of a printing composition, the filled mesh areas comprising a resist coating encasing the mesh in the filled areas, the resist coating comprising cross-linked acrylic polymer intimately dispersed in fused vinyl resin.
    Type: Grant
    Filed: March 9, 1981
    Date of Patent: December 7, 1982
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jacob A. Otthofer, Jr.
  • Print screen stencil
    Patent number: 4286518
    Abstract: A print screen stencil for printing with corrosive printing compositions is disclosed. The stencil comprises a screen fabric having open mesh areas in a predetermined pattern adapted to allow the passage of a printing composition to a substrate positioned beneath the fabric and filled or closed mesh areas adapted to prevent the passage of a printing composition, the filled mesh areas comprising a resist coating encasing the mesh in the filled areas, the resist coating comprising cross-linked acrylic polymer intimately dispersed in fused vinyl resin.
    Type: Grant
    Filed: July 25, 1979
    Date of Patent: September 1, 1981
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jacob A. Otthofer, Jr.
  • Expandable mandrel
    Patent number: 4276148
    Abstract: The mandrel herein is used for making seamless hollow cylinders by electrolytically forming cylinders on the expandable and contractable mandrel. The mandrel has an inflatable outer surface or jacket which permits it to be expanded or contracted for holding or removing the electroformed cylinder therefrom. The inflatable jacket is backed up by a perforated metal core.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: June 30, 1981
    Assignee: Armstrong World Industries, Inc.
    Inventor: Jacob A. Otthofer, Jr.
  • Compressible sleeve embossing roll
    Patent number: 4003114
    Abstract: The invention is directed to sleeves of high heat conductivity material being press fit on a water cooled shaft and held in position by pins and appropriate locking units of a specific torque.
    Type: Grant
    Filed: February 25, 1976
    Date of Patent: January 18, 1977
    Assignee: Armstrong Cork Company
    Inventors: Walter J. Lewicki, Jr., Jacob A. Otthofer, Jr.